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Fencing Slats & Boards | Treated Timber for Garden & Boundary Fencing

Explore our range of fencing slats and boards, perfect for building strong, stylish, and long-lasting fences. Whether you’re creating a closeboard fence, slatted screen, or custom panel system, our treated timber boards are built to perform in UK weather conditions.

✅ Feather Edge Boards – ideal for traditional closeboard fencing
✅ Slatted Fence Battens – for modern horizontal or vertical designs
✅ Pressure-treated for outdoor durability
✅ Available in multiple lengths and thicknesses
✅ Compatible with timber and concrete posts, rails, and gravel boards

Trusted by landscapers, fencing contractors, and DIYers, our fencing boards are easy to install and available for nationwide delivery.

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100mm x 19mm (4"x3/4") Square sawn, fencing slat/board

£1.02 - £5.42
£1.02 - £5.42
£1.02
£0.92 - £4.80
£0.92 - £4.80
£0.92
In stock

100mm x 19mm (4"x3/4") Square Sawn Fencing Slat/Board Enhance the appeal and security of your outdoor space with our 100mm x 19mm square s...

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£1.02 - £5.42
£1.02 - £5.42
£1.02
£0.92 - £4.80
£0.92 - £4.80
£0.92
Save up to 11% Save %

2nd class slat 1.8M x 100 x 19 Slat

£1.00 - £1.00
£1.00
£1.00 - £1.00
£1.00
In stock

2nd class slat 1.8M x 100 x 19 Slat Enhance your fencing with our 2nd class fence slat, measuring 100mm x 19mm at a length of 1.8m. These pressure...

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£1.00 - £1.00
£1.00
£1.00 - £1.00
£1.00

150 x 22 ( 6 x 7/8) Sarking Board - 3.0m & 4.8m

£5.94 - £7.92
£5.94 - £7.92
£5.94 - £7.92
£5.94
In stock

4.8M x 150 x 22 (16ft 6 x 7/8) Sarking Board Enhance your fencing or roofing projects with our 4.8-meter long sarking board. Crafted with pr...

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£5.94 - £7.92
£5.94 - £7.92
£5.94 - £7.92
£5.94
Save 17% Save %

1.8M x 100 x 19 (6ft 4 x 3/4) Fence Slat

£1.74
£1.74 - £1.74
£1.74
£1.44
£1.44 - £1.44
£1.44
In stock

1.8M x 100 x 19 (6ft 4 x 3/4) Fence Slat Upgrade your fence with the 1.8M x 100 x 19 Fence Slat, a top choice from Alter. Crafted with premium...

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£1.74
£1.74 - £1.74
£1.74
£1.44
£1.44 - £1.44
£1.44
Save 17% Save %
Save 29% Save %

4.8M x 50 x 22 Green Treated rough sawn

£4.80
£4.80 - £4.80
£4.80
£3.43
£3.43 - £3.43
£3.43
In stock

Green Treated Rough Sawn Timber Batten Enhance your domestic projects with our 4.8-meter-long, 50mm x 22mm green treated rough sawn timber bat...

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£4.80
£4.80 - £4.80
£4.80
£3.43
£3.43 - £3.43
£3.43
Save 29% Save %

4.2M x 75 x 22 Sarking Boards (14ft 3 x 3/4 ) Slat

£4.19 - £4.19
£4.19
£4.19 - £4.19
£4.19
In stock

4.2M x 75 x 22 Sarking Boards (12ft 3 x 3/4 ) Slat Enhance your fencing with our 4.2M x 75 x 22 Sarking Boards. Crafted from high-quality, pressur...

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£4.19 - £4.19
£4.19
£4.19 - £4.19
£4.19
Sold out

2.4M x 100 x 19 (8ft 4 x 3/4) Slat

£2.64 - £2.64
£2.64
£2.64 - £2.64
£2.64
Out of stock

2.4M x 100 x 19 (8ft 4 x 3/4) Slat Enhance your space with the 2.4M x 100 x 19 (8ft 4 x 3/4) Slat. Crafted with precision and durability in mi...

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£2.64 - £2.64
£2.64
£2.64 - £2.64
£2.64
Sold out

1.8m x 150mm x 22mm Green Treated Feather Edge Board - Finished 11 - 8mm

£1.80 - £1.80
£1.80
£1.80 - £1.80
£1.80
In stock

This 1.8m x 150mm  Green Treated feather edge is designed for a seamless and overlapping effect. With a gradual taper from 8mm to 11mm, this board ...

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£1.80 - £1.80
£1.80
£1.80 - £1.80
£1.80

4.8M x 100 x 22 Sarking Boards (14ft 4 x 4/5) Slats or Straps

£5.04 - £5.04
£5.04
£5.04 - £5.04
£5.04
In stock

4.8M x 100 x 22 Sarking Boards (14ft 4 x 4/5) Slats or Straps Upgrade your construction projects with our versatile 4.8M x 100 x 22 sarking bo...

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£5.04 - £5.04
£5.04
£5.04 - £5.04
£5.04
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Craig Fraser
June, 2025
Have used Alter landscapes for the past few years for various materials since I started out on my own. Very professional, family run business, office staff always organised friendly and materials always delivered to site on time. Prices very competitive - in line with most other competitors prices. Stock - 95% of time ordering materials they've been in stock (which in the current climate is hard to come by) Quality - the quality of materials has never been an issue, and always been happy. Would recommend Alter supplies to all and with the opening their new yard and office very soon they are definitely going to be more accessible for other trades.
Shona MacDougall
June, 2025
customer service staff and delivery are great Every builders merchant should be like them
Gary Stevenson
May, 2025
Great service and great quality very friendly staff no issues whatsoever just call if can’t get order on line great stuff crazy not to use alter timber be back thanks
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